16049965 has 16 divisors (see below), whose sum is σ = 20750400. Its totient is φ = 11878272.

The previous prime is 16049951. The next prime is 16049981. The reversal of 16049965 is 56994061.

It is a cyclic number.

It is not a de Polignac number, because 16049965 - 2¹⁹ = 15525677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2121 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (1296900).

Almost surely, 2^16049965 is an apocalyptic number.

It is an amenable number.

16049965 is a deficient number, since it is larger than the sum of its proper divisors (4700435).

16049965 is a wasteful number, since it uses less digits than its factorization.

16049965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 16049965 is about 4006.2407566196. The cubic root of 16049965 is about 252.2462372275.

The spelling of 16049965 in words is "sixteen million, forty-nine thousand, nine hundred sixty-five".